package com.yijiankang.threaddemo.example.atomic;

import lombok.extern.slf4j.Slf4j;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Semaphore;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.atomic.LongAdder;

/**
 * @author Mr
 * @title: ConcurrentTest
 * @projectName mytest
 * @description: TODO
 * @date 2019/7/1611:17
 */
@Slf4j
public class ConcurrentReferenceTest {

   public static AtomicReference<Integer> count = new AtomicReference<>(0);

    public static void main(String[] args) {
        count.compareAndSet(0,2);//2
        count.compareAndSet(0,1);//不执行
        count.compareAndSet(1,3);//不执行
        count.compareAndSet(2,4);//4
        count.compareAndSet(3,5);//不执行
        log.info("count:{}",count.get());//输出4
    }




}
